Home / 139,434,254.40-209,151,381.60-124,128,753.60

Finding the Fourth Proportional to 139,434,254.40, 209,151,381.60 and 124,128,753.60

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Solution

The fourth proportional to 139,434,254.40, 209,151,381.60 and 124,128,753.60 is: 186,193,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,434,254.40 : 209,151,381.60 = 124,128,753.60 : x
  2. Step 2: Convert to fraction form
    139,434,254.40/209,151,381.60 = 124,128,753.60/x
  3. Step 3: Cross multiply
    139,434,254.40x = 209,151,381.60 × 124,128,753.60
  4. Step 4: Simplify right side
    139,434,254.40x = 25,961,700,311,725,972
  5. Step 5: Solve for x
    x = 25,961,700,311,725,972/139,434,254.40
  6. Step 6: Final answer
    x = 186,193,130.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.